USGS 12020000 CHEHALIS RIVER NEAR DOTY, WA

Location.--Latitude 46°37'03", Longitude
123°16'35", in NE 1/4 NW 1/4 Section 14, Township 13 North,
Range 5 West, in Lewis County, Hydrologic Unit 17100103, on
right bank 1.3 miles south of Doty, 1.6 miles upstream from Elk Creek,
3.4 miles north Pe Ell, and at river mile
101.8. Drainage
area is 113 square miles. Datum of
the gage is NAVD of 1988, prior to May 8, 2018, datum of the gage was
NVGD of 1929.

The 15-minute precipitation and air temperature data for
this station are temporary and will only be displayed
for 120 days. Time series of 15-minute or cumulative daily values
will NOT be available for retrieval following the 120-day display
period. Although the instrumentations are calibrated at least
once/year, the temporary classification means that documented
routine inspections and other quality assurance measures are not
performed that would make the data acceptable for archival,
retrieval, or future use in general scientific or interpretive
studies.

Gage height datum conversion
to the NAVD88 datum for this streamgage was completed on May 8,
2018. All reported gage heights and those associated with
discharge measurements and stage-discharge ratings have been
converted and are consistent with elevations based on the NAVD88
datum. A conversion factor of 304.90 ft was used to convert the
old gage heights to the currently reported instantaneous gage
height, discharge measurement gage heights, and stage-discharge
rating points.